Release 10.1A: OpenEdge Development:
Web Services

General Client Programming Model for Progress 4GL Web Services

The starting point for developing a Web service client application is the WSDL for the Web service. A typical client application development process consists of the following tasks, each described in a section of this chapter:

Creating client interfaces from WSDL
Understanding how client interfaces differ using different SOAP formats
Programming for different session models
Overview of calling methods on Web service objects
Handling communications with Web services
Retrieving and sending object IDs—handling SOAP headers
Defining and passing Web service method parameters
Mapping relational data (Progress 4GL temp-tables)
Mapping Progress procedures to SOAP messages
Handling Web service errors and SOAP faults